Home / 3,422.10-4,722.50-1,850.20

Finding the Fourth Proportional to 3,422.10, 4,722.50 and 1,850.20

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Solution

The fourth proportional to 3,422.10, 4,722.50 and 1,850.20 is: 2,553.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.10 : 4,722.50 = 1,850.20 : x
  2. Step 2: Convert to fraction form
    3,422.10/4,722.50 = 1,850.20/x
  3. Step 3: Cross multiply
    3,422.10x = 4,722.50 × 1,850.20
  4. Step 4: Simplify right side
    3,422.10x = 8,737,569.50
  5. Step 5: Solve for x
    x = 8,737,569.50/3,422.10
  6. Step 6: Final answer
    x = 2,553.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.